Sodium Hydroxide → HCID 21883487、化合物

HRID 722319ノート

反応式

HRID 722319 の反応式
[Cl:1][C:2]1[CH:3]=[C:4]([C:21]#[N:22])[C:5]2[O:10][CH:9]([C:11]([F:14])([F:13])[F:12])[C:8]([C:15]([O:17]CC)=[O:16])=[CH:7][C:6]=2[CH:20]=1.[OH-].[Na+]>C1COCC1.C(O)C>[Cl:1][C:2]1[CH:3]=[C:4]([C:21]#[N:22])[C:5]2[O:10][CH:9]([C:11]([F:14])([F:13])[F:12])[C:8]([C:15]([OH:17])=[O:16])=[CH:7][C:6]=2[CH:20]=1

参加物

5

反応物 2

HCID 14798Sodium HydroxideHCID 21883678HCID 21883678、化合物

生成物 1

HCID 21883487HCID 21883487、化合物収率 22%

試薬・触媒・溶媒 2

HCID 702Ethanol溶媒HCID 8028Tetrahydrofuran溶媒

実験手順

The ester from Step 2 (0.51 g 1.5 mmol) was dissolved in THF (5 mL) and ethanol (5 mL), treated with 2.5N sodium hydroxide (1.2 mL, 3.0 mmol), and stirred at room temperature for 1.5 hours. The reaction mixture was concentrated in vacuo, acidified with 3N HCl, extracted with ethyl acetate, washed with water, brine, dried over MgSO4, concentrated in vacuo, and recrystallized from diethyl ether/hexane to give a white powder (0.10 g, 21%): mp 238.1–239.7° C. 1H NMR (acetone-d6/300 MHz) 7.97 (s, 1H), 7.92 (d, 1H, J=2.4 Hz), 7.89 (d, 1H, J=2.4 Hz), 6.14 (q, 1H, J=6.6 Hz). FABLRMS m/z 302 (M−H). ESHRMS m/z 301.9819 (M−H, Calc'd 301.9832). Anal. Calc'd for C12H5ClF3NO3: C, 47.47; H, 1.66; N, 4.61. Found: C, 47.41; H, 1.70; N, 4.55.

後処理

  1. concentrationThe reaction mixture was concentrated in vacuo
  2. extractionextracted with ethyl acetate
  3. washwashed with water, brine
  4. dry with materialdried over MgSO4
  5. concentrationconcentrated in vacuo
  6. customrecrystallized from diethyl ether/hexane

出典と根拠

ORDレコード
ord-89071cc6abef43a092e9bd53e644139a
出典データセット
uspto-grants-2006_11
特許番号
US07138411B2

反応ノート

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